1103056243 has 2 divisors, whose sum is σ = 1103056244. Its totient is φ = 1103056242.

The previous prime is 1103056187. The next prime is 1103056319. The reversal of 1103056243 is 3426503011.

It is a weak prime.

It is an emirp because it is prime and its reverse (3426503011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103056243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1103054243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551528121 + 551528122.

It is an arithmetic number, because the mean of its divisors is an integer number (551528122).

Almost surely, 2^1103056243 is an apocalyptic number.

1103056243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103056243 is an equidigital number, since it uses as much as digits as its factorization.

1103056243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1103056243 is about 33212.2905413041. The cubic root of 1103056243 is about 1033.2352613711.

Adding to 1103056243 its reverse (3426503011), we get a palindrome (4529559254).

The spelling of 1103056243 in words is "one billion, one hundred three million, fifty-six thousand, two hundred forty-three".